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Please note that terms and conditions apply. Turbulence in the highly restricted dynamics of a closure at second order: comparison with DNS View the table of contents for this issue, or go to the journal homepage for more Abstract. S3T (Stochastic Structural Stability Theory) employs a closure at second order to obtain the dynamics of the statistical mean(More)
Secondary organic aerosol (SOA) formation from 2-methyl-3-buten-2-ol (MBO) photooxidation has recently been observed in both field and laboratory studies. Similar to the level of isoprene, the level of MBO-derived SOA increases with elevated aerosol acidity in the absence of nitric oxide; therefore, an epoxide intermediate, (3,3-dimethyloxiran-2-yl)methanol(More)
Pseudowollastonite ceramics (beta-CaSiO3) from synthetic and natural sources were assessed with regard to their properties relevant to biomedical applications. Synthetic and natural CaSiO3 powders, with average particle size of 1.6 and 13.2 microm, respectively, were first employed. Powders were pressed and sintered at 1400 degrees C for 2 h.(More)
Synthetic pseudowollastonite (psW) and a nanostructured copolymer made of a biostable component, Poly(ethylmethacrylate) (PEMA) and a bioresorbable component, vinylpyrrolidone (VP) are used in this work for the preparation of a new family of bone substitutes that allow osseointegration and mechanical stability. Composites are prepared by bulk polymerization(More)
Composite materials are very promising biomaterials for hard tissue augmentation. The approach assayed in this work involves the manufacturing of a composite made of a bioactive ceramic, natural wollastonite (W) and a nanostructured copolymer of ethylmethacrylate (EMA) and vinylpyrrolidone (VP) to yield a bioresorbable and biocompatible VP-EMA copolymer. A(More)
Shoot-tips of Santolina canescens, an aromatic species producing a novel diacetylene derivative, were in vitro multiplied on Murashige-Skoog basal medium (MS) containing different concentrations of 6-benzyladenine (BA) and kinetin (KIN). Rooting phase was performed on media supplemented with different auxins: 3-indoleacetic acid (IAA), 3-indolebutyric acid(More)
The modeling of roughness effects in turbulent boundary layers (TBLs) is considered using the elliptic relaxation method of Durbin (1993), which takes into account non-local, wall-blocking effects. His approach considers a term, analogous to energy redistribution, that combines the effects of the near-wall velocity-pressure gradient correlation and the(More)
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